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Fun Facts
- Her family name "Tsukumo" comes from "tsukumogami", her species of youkai. The motif of hers might be derived from "Bokuboku Biwa" (琵琶牧々), a tsukumogami transforming into biwa houshi.
- Benben and Yatsuhashi shares the same ability (making music of their own), like Cirno and Letty Whiterock who shares one ability (Ability to Manipulate cold/chill, even their level is different.)
- Benben Tsukumo and Yatsuhashi Tsukumo has older and younger sister relationships, like Remilia Scarlet with Flandre Scarlet, Shizuha Aki with Minoriko Aki, and Watatsuki no Yorihime with Watatsuki no Toyohime.